fGen

This is an user friendly function generator in C. You can simple way generate different waveforms and do operations with them.

Features

SIMULATION

• You can set the simulation time
• You can add the number of simulaton steps

WAVEFORMS

• periodic signals: sine, square, triangle
• non-periodic signals: square root, Log, Log2, Log10, Lin

OPERATIONS

• math: add, sub, mul, div

OUTPUTS

• showWaves: makes a list with two columns in console
• writeCSV: makes a CSV file with content of "showWaves"
• writeHeader: makes a standard C header file with two arrays

Getting started

To use this repository, you will need:

• GCC (or similar C compiler)

Clone source

git clone https://github.com/vargalaszlo87/fGen.git

Quick build

If you use Windows

🔴 Important! Check the gcc --help command in your Command Prompt. If it doesn't work you need add GCC to system variable (PATH).

install.bat

If you use Linux

install.sh

Self compiling

If you use Windows

gcc -c src/main.c -o build/main.o -I"include"
gcc -c src/signals.c -o build/signals.o -I"include" 
gcc -c src/operands.c -o build/operands.o -I"include" 
gcc -c src/outputs.c -o build/outputs.o -I"include" 
gcc -c src/adjust.c -o build/adjust.o -I"include"
gcc -c src/create.c -o build/create.o -I"include"
gcc build/main.o build/signals.o build/outputs.o build/adjust.o build/create.o -o bin/fGen.exe

If you use Linux

gcc -c src/main.c -o build/main.o -I"include" -lm
gcc -c src/signals.c -o build/signals.o -I"include" -lm
gcc -c src/operands.c -o build/operands.o -I"include" -lm
gcc -c src/outputs.c -o build/outputs.o -I"include" -lm
gcc -c src/adjust.c -o build/adjust.o -I"include" -lm
gcc -c src/create.c -o build/create.o -I"include" -lm
gcc build/main.o build/signals.o build/outputs.o build/adjust.o build/create.o -o bin/fGen

Usage

Insert your headers:

#include "fgen.h"

Create a simulation:

struct generator g;
g.step = 10000;               /* number of steps */
g.simulationTime = 0.1755;    /* time in seconds */

Create a waveform:

struct waveform signal;
signal.amplitude = 230;       /* set amplitude */
signal.frequency = 120;       /* set frequency */
makeSine(&g, &signal);

Generate an output:

showWaves(&signal);

Example

src/main.c file:

#include <stdio.h>
#include <stdlib.h>

#include "fgen.h"

int main(int argc, char *argv[]) {
	
	// create a simulation
	struct generator g;
	g.step = 10000;
	g.simulationTime = 0.1755;
	
	// create a sine signal
	struct waveform signal;
	signal.amplitude = 230;
	signal.frequency = 120;
	makeSine(&g, &signal);

	// crate a sine noise-signal
	struct waveform noise;
	noise.amplitude = 23;
	noise.frequency = 5000;
	makeSine(&g, &noise);

	// create a ramp (sqrt function)
	struct waveform ramp;
	makeSqrt(&g, &ramp);

	// make an 'out' waveform
	struct waveform out;
	
	// add two signals (out = signal + noise)
	// multiply two signals (out = out * ramp)
	out = addWaves(&g, &signal, &noise);
	out = mulWaves(&g, &out, &ramp);

	// write to stdout and CSV
	showWaves(&out);
	writeCSV(&out);	
		
	return 0 ;
}

License

Distributed under the MIT License. See LICENSE.txt for more information.

Contact

Varga Laszlo - https://vargalaszlo.com - [email protected]

Project Link: https://github.com/vargalaszlo87/fGen